Question

首先，我必须将所有'/'charachter更改为 - ＆gt; 'x / x'但没有发生任何事。之后我必须在循环找到“modul”时停止 - ＆gt;这部分是工作。我的代码有什么问题，如何修复它来更改这些字符？ Python 2.7.13

12/12/2017
12/18/2017
12 January 2017
12/18/2017
12/12/2017
12 Jan 17

我的部分HTML代码：

import urllib2
import unicodecsv as csv
import os
import sys
import io
import time
import datetime
import pandas as pd
from bs4 import BeautifulSoup
import MySQLdb
import re

filename=r'output.csv'

resultcsv=open(filename,"wb")
output=csv.writer(resultcsv, delimiter=';',quotechar = '"', quoting=csv.QUOTE_NONNUMERIC, encoding='latin-1')
 
f = open('0910000511.txt', 'r')
x = f.read()

soup = BeautifulSoup(x, 'lxml')

datatable=[]
stop = 0
for ctable in soup.find_all('table',  "ctable" ):
    for record in ctable.find_all('tr'):
        temp_data = []
        for data in record.find_all('td'):
            temp_data.append(data.text.encode('latin-1'))
            if '/' in data.text:
                record2 = str(record).replace('/', ' / ')
                final_format = ' {} '.format(record2)
            if 'modul' in data.text:
                stop = 1
                break
        datatable.append(temp_data)
        if stop == 1:
            break
    if stop == 1:
        break
output.writerows(datatable)

print record2
tab6col = soup.find('table', { "class" : "tab6col" })
datatable2=[]
for record in tab6col.find_all('tr'):
    temp_data2 = []
    for data in record.find_all('td'):
        temp_data2.append(data.text.encode('latin-1'))
    datatable.append(temp_data2)

output.writerows(datatable)

resultcsv.close()

所以我想更改所有/标签，例如：'3/1'到 - ＆gt; '3/1'

Answer 1

试试这个，

将record2 = str(record).replace('/', ' / ')替换为record2 = str(record).replace('/', 'x/x')

Answer 2

我看到了你的代码并发现了一个问题。您试图在脚本中找到td，tr标记，而html中有TR和TD标记。以下是我试过的代码。

a = """<tr><td>&nbsp;</td><TD class="contentsub" WIDTH="80">3/1</tr><td class="contentword_valid">NAME<BR>
Változás időpontja: 2013.12.30.<BR>
Bejegyzés kelte: 2013.12.19."""
from bs4 import BeautifulSoup
datatable=[]
stop = 0
soup = BeautifulSoup(a, 'html.parser')
for record in soup.find_all('tr'):
    temp_data = []
    for data in record.find_all('td'):
        temp_data.append(data.text.encode('latin-1'))
        record2 = str(record).replace('/', ' / ')
        print(record2)
        final_format = ' {} '.format(record2)
        if 'modul' in data.text:
            stop = 1
            break
    datatable.append(temp_data)
    print(datatable)
    if stop == 1:
        break

输出：

<tr><td> < / td><td class="contentsub" width="80">3 / 1< / td>< / tr>
<tr><td> < / td><td class="contentsub" width="80">3 / 1< / td>< / tr>
[[b'\xa0', b'3/1']]

如何使用循环替换python中的字符？

2 个答案: